The man, the legend: a main developer of the BeOS. Did the App Server, Interface Kit, Application Kit. These days, Benoit Schillings does something else entirely: he's currently the chief technology officer at Myriad, where he and his team is working on Alien Dalvik. Now that I know he's the one leading this team, I know for sure we've got something special here.

i probably got it wrong. my point is that qt *is* very important for writing the vm and of course that after vm being finished/compiled you don't need qt anymore to run it.

Hmm, no. Libraries used to develop a code are usually also needed at runtime; otherwise there's no point in using them. The only exception I know of is unit test libraries, which are useless after the product is released. Unless Qt is used by the development tools and not by the product itself, Qt is needed at runtime. It may be linked in a static way but it's definitely there.